Ventilator.



R. T. SENTER & L. A. KLING.

VENTILATOR.

APPLICATION FILED AUG, 2, 1911.

1,065,083. Patented June 17, 1913.

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UNTTED STATEs ATaNT carica.

RALPH T. SENTER, OF BUFFALO, NEW YORK, AND LOUIS A. KLING, OF ELIZABETH,NEW JERSEY, ASSIGNORS, BY MESNE ASSIGNMENTS, TO THE NEAR-SIDE CARCOMPANY, OF NEW YORK, N, Y., A CORPORATION OF NEW YORK.

VENTILATOR.

To all whom t may concern Be it known that we, RALPH T. SENTER and LoUIsA. KLING, citizens of the United States, residing at Buffalo, in thecounty of Erie and State of New York, and at Elizabeth, in the county ofUnion and State of New Jersey, respectively, have invented new anduseful Improvements in Ventilators, (Case B,) of which the following isa full, clear, concise, and exact description, refer ence being had tothe accompanying drawings, forming a part of this specification.

Our invention pertains to ventilators, and particularly relates toventilators for use upon the roofs of passenger cars, especially trolleycars and other cars which are run at a comparatively low speed.

It is the principal object of our invention to produce a ventilatorwhich will perform its duties satisfactorily when there is only a slowrelative movement between the ventilator and the air, and to this end weso constructthe ventilator that the air currents will be so acted uponas to cause an increased suction to be produced within the same; and itis another object of our invention to provide a ventilator of thischaracter which will be of a simple and durable construction, and onewhich will meet the various practical requirements for such devices.

A ventilator constructed in accordance with our invention is describedin the following specification and shown in the accompanying drawings,in which:-

Figure 1 is a sectional elevation of the ventilator and a portion of acar roof, the section being taken on the line 1 1 of Fig. 2; Fig. 2 is aplan of the ventilator; and Fig. 3 is a perspective view, in section, ofthe ventilator.

Referring now to the drawings, 10 indicates the top deck of a passengercar, and 11 indicates the lining. The deck 10 and lining 11 are spacedapart, as is usual in car construction, and together from the roof oft-he car. The deck 10 and lining 11 are provided with registeringrectangular flue openings, the opening in the lining being larger thanthe opening in the deck. A flue pipe 12, of rectangular shape in crosssection, is mounted in the openings of the deck and lining and extendssomewhat above the top surface of the deck. The rear wall of the fluepipe 1 2 is vert-ical and the front Wall Specification of LettersPatent.

Application filed August 2, 1911.

Patented June 17, 1913.

Serial No, 641,963.

inclined forwardly, the pipe thus tapering upwardly and inwardly fromthe large opening in the lining to the smaller opening in the deck.

The upper end of the flue pipe 12 is surrounded by a rectangular frame,of which the end walls 13 are solid and the side walls are formed ofspaced inclined slats 14, which are supported by the end walls 13. Oneor more partitions 15 are provided between the end walls at each side ofthe device and constitute intermediate baffles to act upon the aircurrents, as will be hereinafter described. The top end of therectangular frame, which is made up of the walls 13 and the slats 14, isclosed by a rectangular hood 16, substantially U-shaped in crosssection, which is of greater length and width than the frame. The hood16 is open at its ends, but is closed at the sides, being curveddownwardly at its side portions to meet the surface of the deck10,-whereby a pair of unobstructed longitudinal passages or tunnels 17is produced, through which the air may flow past the transverse openingsformed between the end walls 13 and leading to the flue. In order togive strength to the hood and to impart a finished appearance thereto,its front and side edges are flanged as at 18.

Wlhen the device is in use the air will strike against the flat verticalend wall or baiiie 13 between the tunnels 1.7 and will be deflectedabout the sharp corners of the baffle at a high velocity which willmaterially' increase the suction effect caused by that portion of theair which has unobstructed passage through the tunnels. The portions ofthe air passing across the transverse openings will impinge against theintermediate baflies 15 and be deflected away from the openings in sucha manner as to further increase the suction effect. This suction effectis, of course, communicated through the flue 12 to the interior of thecar and the foul air is thus exhausted through the flue and the frame.The construction of the device and the arrangement of the several partsthereof results in a strong suction effect, and, consequently, in a veryefficient ventilator. The disposition of the hood and of the slats 14 issuch that it is impossible for rain or snow to enter the flue 12. Thepassage of the water from the deck 1() into the ue is prevented by theupwardly eX- tending end of the flue. In order to provide against thecntry of dust or other foreign particles into the car through theventilator we provide the lower end of the flue 12 with a screen orgrille 19.

lVhcn used upon a street car, one ventilator will not give thedisplaccn'ient of air which is usually required; and, in order that therequisite displacement may be obtained, a plurality of ventilators areemployed, placed in such positions upon the roof as may be convenient.The ventilator is of a simple construction and has a high eX- haustivepower when the speed of its movement relatively to the air is comaratively low moreover it is quite watertig t.

In cars of the type in which the sash, when raised, enters the rootl ofthe car the tiue pipe l2 may be omitted between the deck and lining, toallow for the movement of the sash.

Having thus described our invention, what we claim as new and desire tosecure by Letters Patent, is:

l. The combination with a roof having an opening therein, and a fluecommunicating with said opening, of a hood having parallel side wallsand open ends arranged above the opening and having its walls secured tothe roof in spaced relation to the sides of the opening, and wallsextending from the ends ot the opening to the hood, the spaces betweenthe side walls of .the hood. and the end walls ot the openingconstituting straight unobstructed air passage .having with saidopening, ot' a hood forming par- 40 alle] side walls and open endsarranged above the opening and having its walls secured to the root inspaced relation to the sides of the opening, walls extending from theends of the opening to the hood, the

spaces between the side walls of the hood and the end walls ot theopening constituting straight unobstructed air passages havingcommunication with the Hue between said end walls said end wallsconstitutinf` 50 batiies, and intermediate baiies arranged on each sideof said opening between said end walls.

In witness whereof, we have hereunto subscribed our names, each in thepresence of two witnesses.

RALPH T. SENTER. LOUIS A. KLINGr.`

lVitnesses Jos. H. KLEIN, WM. A. BARR.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

